How has the porcelain in your oven help up,(any chipping)?
Have you checked the porcelain?
How old is your oven?
What make is it?
Do you bake pizzas in it?
Do you use temperatures over 450F?
If you did have chipping problems,what was the fix,& how would you rate the time and service to correct the problem?
Thanks, (Inquiring Minds want to know).